The main effects of adding steel fibers to ceramic fiber cotton are: enhancing toughness, improving stress-strain resistance, and improving mechanical shock resistance; improving thermal shock resistance, improving resistance to cracking and peeling; inhibiting damage after curing, drying and heat treatment The line shrinks. The amount of steel fiber added is generally 0.6-2.5% (volume ratio).

However, the amount of steel fiber should not be too large. Too much steel fiber will deteriorate the high-temperature physical and chemical properties of the refractory castable. For example, steel fiber will cause the residual linear expansion of the castable after high temperature firing. At the same time, the iron oxide content in the castable is increased and its corrosion resistance is reduced. Adding too much steel fiber will also make the workability of the castable worse.

Through the content explained in the article, you can generally understand the specific meaning of not adding excessive steel fiber to the ceramic fiber cotton. I hope that the content explained in the article will be helpful to everyone. In the future operation and use, we should pay more attention to this aspect. .


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